

str_1 = "test_1 %d" % 321
print(str_1)

name = "Cai"
str_2 = "test %s %d %f" % (name, 123, 1.23)
print(str_2)

print("%5.2f" % 2.225)

number_1 = 4.5
print(f"{str_1}  987   {str_2} abc   {number_1}")

print(f"{5+2} {41.98+52.0}")

